Pork Tenderloin?

Thinking of making one for Christmas dinner, but I've never made one before? What's the best way to do it and how do I marinate it?

TIA! (Crockpot ideas are always amazing ;) )

i bake it per directions on package, normally they come pre mairinated.

My MomMom makes hers in the crock pot with a packet of onion soup mix and a can of cranberry. Omg so good. I'm not even a huge pork fan and def not a fan of cranberry but its perfect.

My husband makes this: http://www.bettycrocker.com/recipes/italian-roasted-pork-tenderloin/5e5568fc-18cc-4b61-9000-9ff0d4a77228

He cooks it in the oven, but I don't see why you couldn't do it in the crock pot instead. It's devine!!!

My friend takespork tenderloin and puts in the crockpot with a bag or jar of saurkraut and suprising its really good